Automobile interior trim part and forming process for same

A technology for automotive interior parts and processes, applied in synthetic resin layered products, lamination, and layered products, etc., can solve problems such as poor products, low mold temperature and fabric performance requirements, and reduce the incidence of quality problems. , The effect of improving NVH performance and improving production efficiency

Active Publication Date: 2014-04-30
GREAT WALL MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem to be solved by the present invention is to provide an automotive interior trim and its molding process. This process has lower requirements on mold temperature and fabric performance, and avoids the problem of defective products caused by inaccurate control points. It is especially suitable for automobiles. Interior roof and sun visor molding process

Method used

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  • Automobile interior trim part and forming process for same
  • Automobile interior trim part and forming process for same
  • Automobile interior trim part and forming process for same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] An automobile interior part is composed of a composite knitted fabric layer, a glass fiber felt, a PU foam board, a glass fiber felt, and a PET material layer from top to bottom.

[0035] A process for producing the above-mentioned automotive interior parts, comprising the following processing steps:

[0036] (1) Put the PU foam board through the roller glue machine to apply glue on the upper and lower sides, and then spray the PU foam board with water, wherein the ratio of glue to water is 2:1;

[0037] (2) Stack the PET material layer, glass fiber felt, double-sided glued PU foam board, glass fiber felt and composite knitted fabric layer from bottom to top in order, and send them to the mold cavity after the stacking is completed;

[0038] (3) Cold material hot mold compression molding, in which the temperature of the mold is 140oC, and the pressure is kept at 10MPa-15MPa. During the pressure keeping process, the exhaust is exhausted at intervals. After the pressure ...

Embodiment 2

[0042] An automobile interior part is composed of a composite knitted fabric layer, a glass fiber felt, a PU foam board, a glass fiber felt, and a PET material layer from top to bottom.

[0043] A process for producing the above-mentioned automotive interior parts, comprising the following processing steps:

[0044] (1) Pass the PU foam board through the roller glue machine to apply glue on the upper and lower sides, and then spray the PU foam board with water, wherein the ratio of glue to water is 1.5:1;

[0045](2) Stack the PET material layer, glass fiber felt, double-sided glued PU foam board, glass fiber felt and composite knitted fabric layer from bottom to top in order, and send them to the mold cavity after the stacking is completed;

[0046] (3) Cold material hot mold compression molding, in which the temperature of the mold is 130oC, and the pressure is maintained, and the pressure is 10MPa-15MPa. During the pressure maintenance process, the exhaust is exhausted at i...

Embodiment 3

[0050] An automobile interior part is composed of a composite knitted fabric layer, a glass fiber felt, a PU foam board, a glass fiber felt, and a PET material layer from top to bottom.

[0051] A process for producing the above-mentioned automotive interior parts, comprising the following processing steps:

[0052] (1) Put the PU foam board through the roller glue machine to apply glue on the upper and lower sides, and then spray the PU foam board with water, wherein the ratio of glue to water is 1:1;

[0053] (2) Stack the PET material layer, glass fiber felt, double-sided glued PU foam board, glass fiber felt and composite knitted fabric layer from bottom to top in order, and send them to the mold cavity after the stacking is completed;

[0054] (3) Cold material hot mold compression molding, in which the temperature of the mold is 120oC, and the pressure is kept at 10MPa-15MPa. During the pressure keeping process, the exhaust is exhausted at intervals, and the pressure is ...

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Abstract

The invention provides an automobile interior trim part and a forming process for the same. The automobile interior trim part sequentially consists of a composite knitted fabric layer, a fiberglass mat, a PU (polyurethane) foam sheet, the fiberglass mat and a PET (polyethylene terephthalate) material layer from top to bottom. The automobile interior trim part and the forming process for the same have the advantages and positive effects that the cost is lowered, the production efficiency is improved, and the occurrence rate of quality problems is lowered; sound insulation and noise reduction effects can be achieved, and the NVH (noise vibration and harshness) performance of a product assembly can be improved; energy is saved, and the consumption is reduced.

Description

technical field [0001] The invention belongs to the technical field of auto parts, and in particular relates to an auto interior trim and a molding process thereof. Background technique [0002] With the development of the automobile industry, the NVH performance of the whole vehicle is getting more and more attention, and the requirements for the NVH performance of auto parts are also getting higher and higher. The car roof is an important sound-absorbing part, which plays a major role in the whole vehicle; there are two main molding processes for the car roof molding process, one is the dry molding process, also known as the hot material cold molding method, the molding method is mainly The PU composite board is heated, and the temperature of the board is about 180°C, and the product fabric is molded in the mold; [0003] The second is the wet forming process. The wet forming process is divided into a wet one-step forming process and a wet two-step forming process. The we...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B17/02B32B17/10B32B27/02B32B27/08B32B27/40B32B27/34B32B37/12B32B37/06B32B37/10
Inventor 刘新义宋伟康杜洪超赵磊许琰
Owner GREAT WALL MOTOR CO LTD
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